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A001619 formatted as a simple table:

n a(n)
1 1
2 3
3 11
4 13
5 17
6 21
7 23
8 73
9 101
10 103
11 111
12 113
13 117
14 121
15 123
16 173
17 323
18 373
19 1101
20 1103
21 1111
22 1113
23 1117
24 1121
25 1123
26 1173
27 1323
28 1373
29 3323
30 3373
31 11373
32 13373
33 17373
34 21373
35 23373
36 73373
37 101373
38 103373
39 111373
40 113373
41 117373
42 121373

[1,3,11,13,17,21,23,73,101,103,111,113,117,121,
 123,173,323,373,1101,1103,1111,1113,1117,1121,
 1123,1173,1323,1373,3323,3373,11373,13373,17373,
 21373,23373,73373,101373,103373,111373,113373,
 117373,121373]

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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